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2749106869 is a prime number
BaseRepresentation
bin1010001111011100…
…0000101010110101
321002120221002122221
42203313000222311
521112232404434
61132442522341
7125061010555
oct24367005265
97076832587
102749106869
111190887753
126488063b1
1334a71b472
141c1177165
151115352b4
hexa3dc0ab5

2749106869 has 2 divisors, whose sum is σ = 2749106870. Its totient is φ = 2749106868.

The previous prime is 2749106851. The next prime is 2749106891. The reversal of 2749106869 is 9686019472.

It is a happy number.

2749106869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1556302500 + 1192804369 = 39450^2 + 34537^2 .

It is a cyclic number.

It is not a de Polignac number, because 2749106869 - 25 = 2749106837 is a prime.

It is a super-2 number, since 2×27491068692 = 15115177154365966322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2749176869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1374553434 + 1374553435.

It is an arithmetic number, because the mean of its divisors is an integer number (1374553435).

Almost surely, 22749106869 is an apocalyptic number.

It is an amenable number.

2749106869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2749106869 is an equidigital number, since it uses as much as digits as its factorization.

2749106869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 2749106869 is about 52431.9260470183. The cubic root of 2749106869 is about 1400.8679768935.

The spelling of 2749106869 in words is "two billion, seven hundred forty-nine million, one hundred six thousand, eight hundred sixty-nine".